Tips on Customizing Add-Team-Member

How to Hide Add Your Team Admin Menus

function plt_hide_add_team_member_menus() {
	//Hide the "Add  Team" menu.
	remove_menu_page('edit.php?post_type=sci_team');
	//Hide the "Add  Team → All Team Members" menu.
	remove_submenu_page('edit.php?post_type=sci_team', 'edit.php?post_type=sci_team');
	//Hide the "Add  Team → Add New Member" menu.
	remove_submenu_page('edit.php?post_type=sci_team', 'post-new.php?post_type=sci_team');
}

add_action('admin_menu', 'plt_hide_add_team_member_menus', 15);

Where do I put this code?

How to Hide the "Member Description" Meta Box

function plt_hide_add_team_member_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Member Description" meta box.
	remove_meta_box('my_all_meta', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_add_team_member_metaboxes', 20);